CpeR is an activator required for expression of the phycoerythrin operon (cpeBA) in the cyanobacterium Fremyella diplosiphon and is encoded in the phycoerythrin linker-polypeptide operon (cpeCDESTR).


In the cyanobacteria, phycobilisomes are assembled from (alphabeta)(6) hexamers of the coloured phycobiliproteins, allophycocyanin, phycocyanin and phycoerythrin (PE). The precise architecture of the phycobilisome is determined by the various colourless linker proteins that bind to the biliprotein hexamers. Genes for beta and alpha subunits of PE make up… (More)


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